PROPIPETTE Safety Pipette Filler
pH Meters. Descriptive catalog illustrates 4 models. 60
holds liquids indefinitely
pH Meters. AC unit includes electrometric titrations. Details. 2
• Time Tested • No moving parts
Photometers. New universal unit for low level light measurements. 145 Photometers. Details on colorimeters and fluorimeters. 93 Positioners. Data on remote positioner for hot labs. 206
• Simple to operate
Potassium Iodide. Details on this and other AR chemicals. 97
The new PROPIPETTE eliminates the dangerous practice of using the mouth to d r a w liquids into pipettes. It is simple t o use a n d the o p e r a t o r soon becomes proficient so t h a t liquids can b e delivered quickly, precisely a n d safely. Measurement precision is extremely high (0.01 cc). The instrument has three a g a t e - b a l l valves which operate independently a n d t h e entire procedure can be done w i t h only one h a n d . comes in black, r e d , green a n d blue . . . PRICE $ 7 . 6 0 A v a i l a b l e t h r o u g h l a b o r a t o r y dealers.
each
Write for additional
i
Presses. Bulletin on 20-ton capacity hydraulic press. 37 Pumps. pump.
New portable high vacuum 121
Pumps. Data feeder pumps.
on liquid
chemical 29
sent o n a p p r o v a l
Pumps. Metering pump for strong oxidizing agents. 119
A l l l a b o r a t o r y pipettes can be used w i t h the PROPIPETTE — Safety Pipette Filler
a
Product Capsules
information
INSTRUMENTATION
ASSOCIATES
Distributors of Laboratory and Scientific Specialties 17 West e o t h Street New York S 3 , N. V. Circle No. 78 on Readers' Service Card
Pumps. Folder on centrifugal and positive pressure pumps. 75 Pumps. Data on single- and two-stage rotary gas ballast pumps. 96 Radiochemicals. Data on line of H 3 and C 14 chemicals. 159 Reagents. Bulletin on reagents and solutions for gas analysis. 3 Reagents. Illustrated folder on reagent specifications. 74 Reagents. Bottle labels provide actual lot analysis. 51
DRIERITE "The Versatile
Deskcant"
Recorders. Bulletin servo-recorder.
on
linear/log 175
Recorders. Catalog features matic calorimeter recorder.
auto61
Recorders. Data on self-balancing potentiometric recorder. 67 Recorders. Details on portable, multirange temp, recorders. 171
Ca SO. + Vz H,0
A CLASSIC
COMBINATION
FROM YOUR
LABORATORY SUPPLY DEALER
Recorders. Complete info on new integrating recorder. 160 Recording Pens. Data sheet on new, non-clogging pen. 10 Refractometers. Measures difference in refractive index. 1 52 Resins. Data on "Amberlite" ion exchange resins. 114
Circle No. 68 on Readers' Service Card
130 A
·
ANALYTICAL CHEMISTRY
Resins. Properties chart offered on ion exchange resins. 146
